... , 3.Beautiful Appearance, 4.Suitable for Pedelecs. mini Controller for e-bike System Functions: Linear Speed Control, Brake Power-off,Mute Start ... , Sensorless,Sleep.System Protection Featuretages:Under-voltage Protection,Overload Protection,Motor Block Protection,Speed Limit,Lose Control Protection,Short Circuit Protection ... Protection,Overheat Protection.A0 90mm*50mm*32mm mini Controller for e-bike